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Passengers side is 4-pin; drivers side is 2-pin.

Posted by: QCRAZY on 2004-04-29 08:54:36
Account #: 1889

In Reply to: Ok, you're right.... just checked.. Heheheh... one of our tuners is having folks replace the wrong posted by Hal_S4shizzle on 2004-04-29 08:42:15

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Thread:

Lower temp thermo-switch for S4 after-run system......(RESULTS ADDED) - QCRAZY 2004-04-29 07:32:02 (16918 views)

Re: Lower temp thermo-switch for S4 after-run system......(RESULTS ADDED) - EuroVWGTi 2007-06-18 10:51:36 (290 views)

I highly reccomend getting a spare clip - mine busted - SmokinS4 2006-05-07 18:21:17 (694 views)

A few months late to the party here, but... - markbradford 2004-08-10 07:52:42 (1110 views)

great idea thanks! thanks for the pics. tested new thermoswitch in boiling water... - eddie crawford 2004-07-08 14:31:08 (1088 views)

very nice - innocent:byStander 2004-07-04 22:03:13 (658 views)

Top work Fella! - kaygee 2004-06-18 15:57:35 (685 views)

great post! - innocent:byStander 2004-05-10 14:53:02 (638 views)

So other than actually running the pump the results don't appear as dramatic as expected. - gk1 2004-05-03 21:41:16 (1833 views)

good data...nice graphs... - ModifiedA4 2004-05-04 08:10:01 (692 views)

I was actually suprised it made as much a difference as it did..... - QCRAZY 2004-05-04 07:09:30 (975 views)

Cool deal, now we need some high quality thermocouples or - gk1 2004-05-04 08:48:48 (944 views)

There's no known answers to your questions.... - QCRAZY 2004-05-04 09:41:59 (879 views)

Very true. - gk1 2004-05-04 14:54:29 (711 views)

actually...you could disable the afterrun system in such a way so only the pump comes on... - ModifiedA4 2004-05-04 09:48:51 (915 views)

And what portion is heat soak?? There's really no reason to. - QCRAZY 2004-05-04 09:51:49 (787 views)

heat soak? - ModifiedA4 2004-05-04 09:55:45 (1325 views)

Was going to say that. Synth actually ashes - no coking. Thx to both of you for this info. - Hal_S4shizzle 2004-05-04 08:52:47 (661 views)

Quite an assumption that all owners use synth; espeically considering that Audi doesn't. - QCRAZY 2004-05-04 09:49:00 (633 views)

factory fill is 0w-30 per the manual. AFAIK, that's only Synth? - Andrew C::FATS 2004-05-10 13:35:37 (679 views)

yeah its the local temps of the turbo that matter... - ModifiedA4 2004-05-04 07:59:52 (702 views)

I just asked about this the other day, thanks a lot! Great post! - J4SON 2004-04-29 13:00:47 (572 views)

HERO CHAMPION POST!!! - nyet 2004-04-29 12:26:18 (698 views)

Sweet! - Doc@PEB tuning 2004-04-29 09:49:36 (576 views)

good stuff! <bookmark> - JoeyJoJoeJrShabadoo 2004-04-29 08:56:28 (740 views)

Nice work! your $20 gamble paid off :) - ModifiedA4 2004-04-29 08:47:16 (839 views)

Will this work for the 1.8 A4? same PNs? I'm about to install the SPP EFK and need a low temp switch - Silver Streakin' 2004-04-29 11:12:22 (653 views)

no. the a4 has a completely different coolant system with no afterrun capability. - ModifiedA4 2004-04-29 11:28:29 (1049 views)

so, the one from Neuspeed is the best way to go? - Silver Streakin' 2004-04-29 11:46:20 (668 views)

if they sell a lower temp fan switch for the A4 then sure. its 3pin i believe. - ModifiedA4 2004-04-29 11:49:55 (683 views)

RAD69 said that he used the one from Neu. ...just curious if there was something OEM/better. - Silver Streakin' 2004-04-29 11:57:29 (548 views)

Great Article. This should go in the Tech Section! - reefer_bob 2004-04-29 08:42:11 (636 views)

I just sent it in. - QCRAZY 2004-04-29 08:59:09 (496 views)

I wonder how much more quickly that after run pump will fail with this increased activity? - LCP 2004-04-29 08:05:20 (653 views)

I've been wondering that too. But I really think it fails do to heat and... - QCRAZY 2004-04-29 08:11:05 (831 views)

Is the pump disabled when the engine is running? - VonK :: Indukted 2004-04-29 09:08:28 (589 views)

there is no current flow to the pump when the engine is running. - ModifiedA4 2004-04-29 10:09:05 (670 views)

the circuit is open while the engine is running if that is what you mean. - dscottjr@PEBtuning 2004-04-29 09:23:14 (547 views)

Thanks, that's what I meant. - VonK :: Indukted 2004-04-29 11:25:15 (543 views)

Weren't most of the failures cracks? Might as well get some use out of it before it fails :P - Nick Gustas 2004-04-29 08:09:23 (562 views)

Corrected below/ more than just run the after-run system(ECU primary sensor as well). Have you run.. - Hal_S4shizzle 2004-04-29 07:58:46 (943 views)

as an added note...the afterrun system is not connected to the ecu in anyway. - ModifiedA4 2004-04-29 08:48:37 (771 views)

From the 2.7T self study guide... - DAP@PEB tuning 2004-04-29 08:13:15 (1658 views)

I think that's the one on the other side, I may be wrong. - Nick Gustas 2004-04-29 08:03:18 (569 views)

Yep, I think he's talking about the one on the other side too.... - QCRAZY 2004-04-29 08:06:10 (606 views)

Ok, you're right.... just checked.. Heheheh... one of our tuners is having folks replace the wrong - Hal_S4shizzle 2004-04-29 08:42:15 (684 views)

So i WAS right long ago. Dammit:p - dscottjr@PEBtuning 2004-04-29 09:09:14 (627 views)

Heh, don't ask me for coolant system info I guess. =-) - Hal_S4shizzle 2004-04-29 09:22:22 (605 views)

holy sweetness:) - dscottjr@PEBtuning 2004-04-29 09:25:14 (552 views)

Passengers side is 4-pin; drivers side is 2-pin. - QCRAZY 2004-04-29 08:54:36 (631 views)

They make an updated part(green) for the Driver side as well. I've installed one. - Hal_S4shizzle 2004-04-29 08:56:02 (669 views)

Discussed a little here...... - QCRAZY 2004-04-29 09:00:10 (711 views)

We don't need no stinkin turbo timers....... - FrankS 2004-04-29 07:57:28 (999 views)

Mine is arriving at the dealer Saturday - Giga2Envy 2004-04-29 08:13:18 (532 views)

Thank you for the extremely helpful information and all your investigative work!!! - S4_Cinci 2004-04-29 07:56:35 (584 views)

Is there a failsafe that only allows the afterun system to operate only when the car is off? - gk1 2004-04-29 07:50:19 (755 views)

Yes....it's run off a system that's only active for 10..... - QCRAZY 2004-04-29 08:12:54 (761 views)

Thank you! Interestingly enough...the VW VR6 engines seem to have an afterrun pump that operates - RKA 2004-04-29 07:50:13 (1059 views)

Same is true for the 1.8T VWs (and I belive the TTs). - DAP@PEB tuning 2004-04-29 07:56:18 (700 views)

Yep.. The tittys have em.. - Lightweight (Pig Jr) 2004-04-29 13:06:27 (1494 views)

from what i can tell, all 2.8 and transverse 1.8ts have the afterrun. - ModifiedA4 2004-04-29 08:50:03 (671 views)

Yes, but the transverse 1.8Ts don't seem to have a thermoswitch... - DAP@PEB tuning 2004-04-29 08:56:04 (647 views)

im pretty sure you are right...i dont have the TT wiring diagram here.... - ModifiedA4 2004-04-29 10:32:15 (621 views)

And apparently the ECU just defaults to "always come on" - DAP@PEB tuning 2004-04-29 10:37:18 (573 views)

which is why i have an S4 fan control module sitting on my desk :) - ModifiedA4 2004-04-29 10:41:05 (594 views)

Hmmm, well if the choices are: - DAP@PEB tuning 2004-04-29 10:43:30 (617 views)

yup... - ModifiedA4 2004-04-29 10:53:01 (516 views)

My 2000 MY Passat w/ 2.8 litre 30V motor runs the afterrun pump always as well! - S4_Cinci 2004-04-29 07:55:36 (705 views)

Nice job Andrew! - mpwolf 2004-04-29 07:47:59 (585 views)

Is that an Audi A4 part or is that a VW part? Do you know which car and year that part is for? - Giga2Envy 2004-04-29 07:46:13 (690 views)

its a VW part. for a Eurovan. - ModifiedA4 2004-04-29 10:17:23 (644 views)

Hmm... odd that the VW dealership I checked didn't stock the part then. - DAP@PEB tuning 2004-04-29 10:29:48 (592 views)

VW dealer was asking more money for the switch - 02s4 2004-04-29 13:01:09 (511 views)

probably a low use item... - ModifiedA4 2004-04-29 10:34:50 (748 views)

great write up- thanks! - innocent:byStander 2004-04-29 15:30:42 (559 views)

I can picture the parts guy sitting there scratching his head... - DAP@PEB tuning 2004-04-29 10:38:42 (824 views)

exact;ly :) - ModifiedA4 2004-04-29 10:39:58 (519 views)

Not sure...Modified A4 may remember since he actually found the part. - QCRAZY 2004-04-29 08:14:04 (620 views)

Awesome! How often does the pump run now upon shutdown? - Verr�ckt@PEB tuning 2004-04-29 07:46:11 (803 views)

Wow, good job guys! Talk about a useful modification! - Pat-SoCal-HangTime 2004-04-29 07:46:09 (522 views)

Excellent work! - DAP@PEB tuning 2004-04-29 07:39:55 (801 views)

Thanks to both of you for the follow through. Just ordered the requisite parts:) - dscottjr@PEBtuning 2004-04-29 07:37:02 (649 views)

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